Tracking device



FIG. 1 is a front, left and top perspective of a first embodiment of a tracking device showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a front, left and top perspective view of a second embodiment of the tracking device showing our new design;

FIG. 9 is a front view thereof;

FIG. 10 is a back view thereof;

FIG. 11 is a right view thereof;

FIG. 12 is a left view thereof;

FIG. 13 is a top view thereof; and,

FIG. 14 is a bottom view thereof.

The broken lines shown in FIGS. 1-14 are included for the purpose of illustrating environmental elements only and form no part of the claimed design. 

The ornamental design for a tracking device, as shown and described. 